Table 1.

Comparison of in vitro fertilization cycle parameters between the letrozole group (n=69 patients) and the control group (n=92 patients)

Variables	Letrozole	Control	p value*
Age (years)	31.5±4.1	33.1±7.1	0.210
Total FSH dose (IU)	2061.5±1207.1	2197.8±875.1	0.704
Follicles 14-17 mm (n)	5.8±3.85	5.5±3.2	0.762
Follicles ≥18 mm (n)	5.4±3.4	5.3±3.4	0.946
Retrieved oocytes (n)	12.1±7.9	10.2±6.1	0.222
Retrieved MII oocytes (n)	9.4±6.6	7.6±4.8	0.303

Values are expressed as mean ± SD (Standard deviation).

^*Significantly different if p<0.05 (Mann-Whitney test)